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4

Set 4: Systems Of Equations (Beginner)

Explanation

Answer: A

PROBLEM

Solve: 5x + 2y = 41, x + 2y = 13. Find x.

Solve: 5x + 2y = 41, x + 2y = 13. Find x.

A.

7

✓ Correct
B.

8

C.

5

D.

9

Detailed Explanation

Choice A is the best answer. Using elimination or substitution: x = 7

Why others are wrong:
B: 8 is incorrect because it does not satisfy the equation.
C: 5 is incorrect because it does not satisfy the equation.
D: 9 is incorrect because it does not satisfy the equation.
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